<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        const name = "jack";
        const age = 20;
        const str2 = `he is ${name}, age is ${age},
        count ${10 + 10 + 100}`;
        console.log(str2);
    </script>
</body>

</html>